If people would just

People use the word just a lot when talking about problems. If people would just drive slowly near schools. If people would just pay their taxes. If people would just follow the rules. It's a sentence that sounds reasonable as it's true that most problems would go away if people just behaved. The thing is, they don't...and they probably never will. This isn't a cynical take on humanity (I think most people are decent). It's about designing good systems. The vast majority of people who use Bear are there to write, and most drivers in my city stop at red lights. But "most" isn't "all", and when you're dealing with thousands (or millions) of people, a small percentage is still a lot of people. Let's say 1% of people are going to misbehave. That doesn't sounds like much, but if 10,000 people sign up for a service, that's 100 people trying to break things. You can't plan for the 99% and hope the 1% sorts itself out. The 1% is where all the work is. It's also not always the same 1%. Decent…